BLFS vs SWIM: Correlation
Measured on weekly returns over the past three years, BioLife Solutions, Inc. (BLFS) and Latham Group, Inc. (SWIM) carry a correlation of 0.50, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BLFS and SWIM?
Over the past 3 years, BLFS and SWIM moved with a correlation of 0.50, which is moderate. The relationship has been stable: the 1-year correlation (0.50) sits close to the 3-year figure. Over 5 years the correlation is 0.33, and the annualized covariance of weekly returns is 1830.1 %².
Within BLFS's tracked universe of 15 assets, SWIM comes in at #9 by 3-year correlation. The last year tells two different stories: BLFS led by 61.4 percentage points, +46.3% for BLFS against -15.1% for SWIM.
How is this computed?
Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.
BLFS vs SWIM: side by side
| BLFS (BioLife Solutions, Inc.) | SWIM (Latham Group, Inc.) | |
|---|---|---|
| 1-year return | +46.3% | -15.1% |
| 5-year return | -36.2% | -68.5% |
| Volatility (ann.) | 50.1% | 72.5% |
| Beta vs S&P 500 | 1.66 | 1.70 |
| Max drawdown (3Y) | -37.0% | -44.5% |
| Market cap | $1.8B | $0.8B |
| P/E (trailing) | 37.2 | 139.6 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BLFS | SWIM |
|---|---|---|
| 2022 | -51.2% | -87.1% |
| 2023 | -10.7% | -18.3% |
| 2024 | +59.8% | +164.6% |
| 2025 | -6.9% | -8.8% |
| 2026 | +53.8% | +9.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BLFS and SWIM good diversifiers for each other?
Somewhat, no more. With 0.50 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between BLFS and SWIM?
The BLFS/SWIM correlation stands at 0.50 on a 3-year window (1 year: 0.50, 5 years: 0.33), computed from weekly returns as of 2026-08-27.
Is SWIM a good diversifier for BLFS?
Somewhat, no more. With 0.50 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.50 mean?
A reading of 0.50 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/blfs-vs-swim.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/blfs-vs-swim/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BLFS correlations · SWIM correlations
